When I first chopped my hair into a blunt lob last year, I was pretty convinced I'd never change it up again. It was such a departure from my long, wavy hair and I loved the idea of having a specific style for the first time. And then when I became pregnant, I couldn't wait to grow it out just so that I could easily throw my hair up into a topknot without any effort. But after seeing Lauren Conrad's recent cut, I couldn't help but reconsider. It looks sleek and sophisticated, so I reached…